CVE-2021-45931 — Out-of-bounds Write in Project Harfbuzz

CWE-787 — Out-of-bounds Write4 documents4 sources
Severity
6.5MEDIUMNVD
EPSS
0.8%
top 26.46%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Fedoraproject FedoraHarfbuzz Project HarfbuzzDebian Harfbuzz
Timeline
PublishedJan 1
Latest updateJan 2

Description

HarfBuzz 2.9.0 has an out-of-bounds write in hb_bit_set_invertible_t::set (called from hb_sparseset_t::set and hb_set_copy).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages2 packages

Also affects: Fedora 34, 35

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

1
GHSA
GHSA-77w9-6m5g-vpj2: HarfBuzz 2↗2022-01-02
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📋Vendor Advisories

2
Red Hat
harfbuzz: out-of-bounds write in hb_bit_set_invertible_t::set↗2022-01-01
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Debian
CVE-2021-45931: harfbuzz - HarfBuzz 2.9.0 has an out-of-bounds write in hb_bit_set_invertible_t::set (calle...↗2021
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CVE-2021-45931 — Out-of-bounds Write | cvebase